OPHIR FluxGage User Manual
FluxGage™
LED Luminaire Measurement System User Manual
FluxGage
™
FluxGage
™
FluxGage User Manual 2
1 Acronyms ................................................................................................................................. 3
2 Introduction ............................................................................................................................. 4
2.1 Operation principle.......................................................................................................... 4
3 Specifications ........................................................................................................................... 5
4 Mechanical and Electrical Installation ..................................................................................... 9
4.1 Unpacking ........................................................................................................................ 9
4.2 Installation ..................................................................................................................... 10
5 PC and Software Installation ................................................................................................. 11
5.1 Uninstall ......................................................................................................................... 15
6 Using the FluxGage ................................................................................................................ 16
7 Operating the FluxGage SW .................................................................................................. 17
7.1 Top banner .................................................................................................................... 18
7.2 Control Parameters ....................................................................................................... 19
7.3 Optimization Factors ..................................................................................................... 20
7.4 Synchronized Measurement ......................................................................................... 21
7.5 Indicators ....................................................................................................................... 21
7.6 Measured Parameters ................................................................................................... 21
7.7 Flicker Screen ................................................................................................................. 23
7.8 CRI screen ...................................................................................................................... 24
7.9 CIE 1931 Chromaticity ................................................................................................... 25
7.10 Spectrum Screen ........................................................................................................... 26
7.11 PAR screen ..................................................................................................................... 27
7.12 Data logger .................................................................................................................... 28
7.13 Data save ....................................................................................................................... 30
7.14 Save to Excel .................................................................................................................. 31
7.15 Report Generator .......................................................................................................... 32
8 Calibration ............................................................................................................................. 36
8.1 Calibration of the spectrum measurement and the total flux measurement ............... 36
8.2 Calibration of the total flux measurement .................................................................... 37
8.3 Calibration of the spectrometer only ............................................................................ 37
8.4 Back up calibration ........................................................................................................ 38
FluxGage User Manual 3
1 Acronyms
DUT – Device Under Test
CCT – Correlated Color Temperature
CRI – Color Rendering Index
PPF - Photosynthetic Photon Flux
PAR - Photosynthetically Active Radiation (PAR)
Avogadro constant – 6.022*1023
FluxGage User Manual 4
2 Introduction
The FluxGage LED luminaire system measures total flux, color parameters and flicker of LED
luminaires. The FluxGage measures in 2 pi geometry.
2.1 Operation principle
The FluxGage measures by collecting light using photovoltaic cells. Unlike an integrating sphere,
the FluxGage does not rely on multiple reflections and its interior is black. Light from the DUT
hits the interior walls of the FluxGage, gets absorbed and nearly no light bounces back again.
This greatly reduces the effect of the DUT’s size and shape on the measurement.
An integrated spectrometer is used to measure color parameters (CCT, CRI, Duv, and CIE 1931
chromaticity coordinate), and to translate the current produced by the photovoltaics into
lumens.
A fast photodiode sensor is used to measure flicker.
An integrated temperature sensor and fans control the temperature of the FluxGage.
Spectrometer
PC
Temperature
sensor
12V
adapter
110V/220V
Solar panel
current
sensor
Flicker sensor
fast detector
circuit
Temperature
sensor circuit
photodiode
fiber
Solar cells
MCU
USB
Ethernet
12V in
Main PCB
Block Diagram
FluxGage User Manual 5
3 Specifications
Parameter
Value
General
p/n 7Z02581
Outer dimensions [mm]
769x563x228
Maximal luminaire size [mm]
[1]
610x450
Spectral range of spectrometer [nm]
400-800
Total luminous flux range [lm]
500-40,000
Measurement time [s]
[2]
2
Operation Temperature [°C]
20-35
Power consumption [W]
36W
Weight [kg]
20KG
Standards
CE, ROHS
Interface
USB
Operation voltage
12v (power adapter is
supplied)
Accuracy
Repeatability
Total flux:
[3]
-Absolute calibration at Ophir
-Referenced to customers’
laboratory for a particular type of
luminaire
±6%
±2%
±1%
±1%
Chromaticity accuracy [Duv]
[4]
±0.002
±0.0005
CCT accuracy
[4]
±1.5%
±33°K at 2200°K CCT
±85°K at 5700°K CCT
±1%
CRI accuracy
[4]
±1%
±0.5%
Flicker accuracy
±1%
±0.5%
[1] Refers to the area which emits light
[2] At the lowest flux
[3] For a DUT which has the same spectrum in all directions.
[4] Measured at the fiber sensor
FluxGage User Manual 6
Parameter
Value
General
p/n 7Z02582
Outer dimensions [mm]
775x564x228
Maximal luminaire size [mm]
[1]
610x450
Spectral range of spectrometer [nm]
400-800
Total luminous flux range [lm]
500-40,000
Measurement time [s]
[2]
2 Operation Temperature [°C]
20-35
Power consumption [W]
36W
Weight [kg]
20KG
Standards
CE, ROHS
Interface
USB
Operation voltage
12v (power adapter is
supplied)
Accuracy
Repeatability
Total flux:
[3]
-Absolute calibration at Ophir
-Referenced to customers’
laboratory for a particular type of
luminaire
±6%
±2%
±1%
±1%
Chromaticity accuracy [Duv]
[4]
±0.002
±0.0005
CCT accuracy
[4]
±1.5%
±33°K at 2200°K CCT
±85°K at 5700°K CCT
±1%
CRI accuracy
[4]
±1%
±0.5%
Flicker accuracy
±1%
±0.5%
[1] Refers to the area which emits light
[2] At the lowest flux
[3] For a DUT which has the same spectrum in all directions.
[4] Measured at the fiber sensor
FluxGage User Manual 7
Parameter
Value
General
p/n 7Z02584
Outer dimensions [mm]
775x564x228
Maximal luminaire size [mm]
[1]
610x450
Spectral range of spectrometer [nm]
400-800
Total luminous flux range [lm]
100-20,000
Measurement time [s]
[2]
2 Operation Temperature [°C]
20-35
Power consumption [W]
36W
Weight [kg]
20KG
Standards
CE, ROHS
Interface
USB
Operation voltage
12v (power adapter is
supplied)
Accuracy
Repeatability
Total flux:
[3]
-Absolute calibration at Ophir
-Referenced to customers’
laboratory for a particular type of
luminaire
±6%
±2%
±1%
±1%
Chromaticity accuracy [Duv]
[4]
±0.002
±0.0005
CCT accuracy
[4]
±1.5%
±33°K at 2200°K CCT
±85°K at 5700°K CCT
±1%
CRI accuracy
[4]
±1%
±0.5%
Flicker accuracy
±1%
±0.5%
[1] Refers to the area which emits light
[2] At the lowest flux
[3] For a DUT which has the same spectrum in all directions.
[4] Measured at the fiber sensor
FluxGage User Manual 8
Parameter
Value
General
p/n 7Z02585
Outer dimensions [mm]
769x564x228
Maximal luminaire size [mm]
[1]
610x450
Spectral range of spectrometer [nm]
400-800
Total luminous flux range [lm]
100-20,000
Measurement time [s]
[2]
2 Operation Temperature [°C]
20-35
Power consumption [W]
36W
Weight [kg]
20KG
Standards
CE, ROHS
Interface
USB
Operation voltage
12v (power adapter is
supplied)
Accuracy
Repeatability
Total flux:
[3]
-Absolute calibration at Ophir
-Referenced to customers’
laboratory for a particular type of
luminaire
±6%
±2%
±1%
±1%
Chromaticity accuracy [Duv]
[4]
±0.002
±0.0005
CCT accuracy
[4]
±1.5%
±33°K at 2200°K CCT
±85°K at 5700°K CCT
±1%
CRI accuracy
[4]
±1%
±0.5%
Flicker accuracy
±1%
±0.5%
[1] Refers to the area which emits light
[2] At the lowest flux
[3] For a DUT which has the same spectrum in all directions.
[4] Measured at the fiber sensor
FluxGage User Manual 9
4 Mechanical and Electrical Installation
4.1 Unpacking
Place the FluxGage box on a flat surface.
Open the box and remove the top piece of foam.
Remove two side pieces of foam.
Reach into the clearance left by the two pieces and lift the FluxGage from the box.
FluxGage User Manual 10
4.2 Installation
The FluxGage can be operated facing up or down.
Allow 200mm (8’’) clearance for the fans.
Connect the power supply to the mains and to the DC input. The power plug is secured
by turning it half turn clockwise.
Connect the PC to the USB port.
The inner surfaces can be cleaned with a damp cloth or clean compressed air. Solvents
should not be used.
Warning. The FluxGage is a heavy object which can cause injury or death if falls on a
person. Take proper precautions.
FluxGage User Manual 11
5 PC and Software Installation
Select 32bit or 64bit according to the operating system.
Install:
Double click on setup.exe
Install start :
FluxGage User Manual 12
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